More info about periodic table: http://www.scescape.net/~woods/elements.html

A text summary of the clickable map above, meant for web-crawlers and other automatic tools:
periodic table SAME AS tabla periodica
periodic table contains 109 elements
periodic table describes element
periodic table describes atom
periodic table provides information such as atomic number
periodic table provides information such as atomic weight
periodic table provides information such as element abbreviation
periodic table provides information such as Group of similar elements